Open Source Software for BSD
LLVM
LLVM is a compiler infrastructure project that contains a collection of modular and reusable compiler and toolchain technologies. LLVM stands for low level virtual machine yet the project has little to do with traditional virtual machines. LLVM is used to construct, optimize and produce intermediate and/or binary machine code. For example, programming languages like Crystal, Swift and Rust depend on the LLVM for compilation of code.
FreeBSD Jails
Jails on the other hand permit software packages to view the system egoistically, as if each package had the machine to itself.
MidnightBSD
MidnightBSD is a new BSD-derived operating system developed with desktop users in mind.
DragonFly BSD
DragonFly belongs to the same class of operating systems as other BSD-derived systems and Linux.
OpenBSD
FREE, multi-platform 4.4BSD-based UNIX-like operating system
NetBSD
PowerPC, Alpha, SPARC, MIPS, SH3, ARM, amd64, i386, m68k, VAX: Of course it runs NetBSD.
NetBSD Default Light Desktop
Electronics, Computer, Single Board Computer, Operating System, Raspberry Pi, ARM, Unix, Productivity, Sysadmin, Mac, OS, and BSD